US8144466B2 - Fan unit and electronic apparatus including the same - Google Patents
Fan unit and electronic apparatus including the same Download PDFInfo
- Publication number
- US8144466B2 US8144466B2 US12/782,711 US78271110A US8144466B2 US 8144466 B2 US8144466 B2 US 8144466B2 US 78271110 A US78271110 A US 78271110A US 8144466 B2 US8144466 B2 US 8144466B2
- Authority
- US
- United States
- Prior art keywords
- fan
- unit
- diameter
- flange portion
- fan case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
Links
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20172—Fan mounting or fan specifications
Definitions
- the present invention relates to a fan unit.
- heating elements such as an insulate gate bipolar transistor (IGBT) that generates a high heat, a capacitor, and a reactor, are incorporated in a housing.
- IGBT insulate gate bipolar transistor
- a heat sink is used to cool these elements, and a cooling fan for forced air cooling is mounted at one end of the housing.
- a fan case is attached to the housing by engagement of projections without using any fixing screw.
- the fan case is firmly attached to the housing with fixing screws.
- a fan unit includes an upper fan case and a lower fan case stacked and fixed to each other, each of the upper and lower fan cases including at least one cooling fan, the lower fan case including a flange portion to be placed on a fan-unit support member having threaded holes, the flange portion having a plurality of screw passage holes having a diameter larger than a diameter of a head of a fixing screw; and a fan-unit retainer plate slidably placed on an upper surface of the flange portion of the lower fan case, the fan-unit retainer plate having screw passage holes each including a first hole having a diameter smaller than the diameter of the head of the fixing screw and a second hole having a diameter larger than the diameter of the head of the fixing screw.
- FIG. 1 is a perspective view of an inverter apparatus according to an embodiment of the present invention
- FIG. 2 is a perspective view of the inverter apparatus shown in FIG. 1 , from which a fan unit is detached;
- FIG. 3 is a perspective view of the fan unit shown in FIG. 2 ;
- FIG. 4 is an exploded perspective view of the fan unit shown in FIG. 3 ;
- FIG. 5 is an enlarged perspective view illustrating the principal part of a fan-unit retainer plate shown in FIG. 4 ;
- FIG. 6A is a plan view illustrating the principal part of the inverter apparatus shown in FIG. 1 to which the fan unit is attached;
- FIG. 6B is a perspective view of a fixing screw in a state shown in FIG. 6A ;
- FIG. 6C is a plan view illustrating a state in which the fan unit is slid for detachment
- FIG. 6D is a perspective view illustrating the fixing screw in the state shown in FIG. 6C ;
- FIG. 7 is a perspective view illustrating a state in which the fan unit is being detached from the inverter apparatus shown in FIG. 1 ;
- FIG. 8 is a plan view illustrating formation of an air channel in the fan unit of the inverter apparatus shown in FIG. 1 .
- an inverter apparatus 1 includes a housing 2 defined by two upper and lower parts. Heating elements 4 , such as an IGBT, mounted on a printed board 3 , capacitors 5 projecting downward, etc. are provided in the upper part of the housing 2 , and air channels 6 a , 6 b , and 6 c are provided in the lower part of the housing 2 . In the air channel 6 a , a heat sink 7 is provided in tight contact with the heating elements 4 . The capacitors 5 project downward from the upper part of the housing 2 into the air channels 6 b and 6 c.
- Heating elements 4 such as an IGBT, mounted on a printed board 3
- capacitors 5 projecting downward, etc. are provided in the upper part of the housing 2
- air channels 6 a , 6 b , and 6 c are provided in the lower part of the housing 2 .
- a heat sink 7 is provided in tight contact with the heating elements 4 .
- the capacitors 5 project downward from the upper part of the housing 2 into the air channels 6 b
- a fan unit 8 blows cooling air into the inverter apparatus 1 .
- the fan unit 8 is attached to one end of the housing 2 serving as a fan-unit support member, and includes a fan case 9 and cooling fans 11 a , 11 b , 11 c , 11 d , and 11 e .
- the fan case 9 is divided into an upper fan case 9 a and a lower fan case 9 b corresponding to the upper and lower parts of the housing 2 .
- the upper fan case 9 a and the lower fan case 9 b are stacked and fixed to each other with fixing screws 10 .
- two cooling fans 11 a and 11 b are arranged side by side in the right-left direction in the upper fan case 9 a
- three fan cases 11 c , 11 d , and 11 e are arranged side by side in the right-left direction in the lower fan case 9 b
- Guides 12 a and 12 b shaped like flat plates are respectively provided on left and right sides of the upper fan case 9 a , and serve to guide attachment and detachment of the fan unit 8 .
- the lower fan case 9 b has a flange portion 13 to be placed on a portion of the housing 2 having threaded holes.
- This flange portion 13 is provided on the periphery of the lower fan case 9 b , and has a plurality of screw passage holes 15 having a diameter larger than the diameter of the heads of the fixing screws 14 .
- a fan-unit retainer plate 17 is slidably provided on an upper surface of the flange portion 13 of the lower fan case 9 b .
- the fan-unit retainer plate 17 has screw passage holes, for example, keyhole-shaped apertures 16 each defined by a first hole 16 a having a diameter smaller than the diameter of the heads of the fixing screws 14 and a second hole 16 b having a diameter larger than the diameter of the heads of the fixing screws 14 .
- the fan-unit retainer plate 17 has an annular rectangular shape corresponding to the flange portion 13 provided on the periphery of the lower fan case 9 b.
- the housing 2 of the inverter apparatus 1 forms the fan-unit support member. At one end of the housing 2 serving as the fan-unit support member, a rectangular opening 18 having a shape corresponding to the shape of the fan unit 8 is provided.
- support members 19 a and 19 b are provided to fix the guides 12 a and 12 b provided at the left and right sides of the upper fan case 9 a of the fan unit 8 .
- the fan-unit retainer plate 17 of the fan unit 8 housed in the inverter apparatus 1 holds the lower fan case 9 b down, so that the fan unit 8 is held in the inverter apparatus 1 .
- the fan unit 8 is detached from the inverter apparatus 1 in the following manner.
- the fixing screws 14 are loosened sufficiently. In this case, it is unnecessary to completely remove the fixing screws 14 .
- the fan-unit retainer plate 17 is slid to the right while being in contact with the lower fan case 9 b , and is placed at a position where the large-diameter second holes 16 b of the keyhole-shaped apertures 16 provided in the fan-unit retainer plate 17 are aligned with the fixing screws 14 , as shown in FIG. 6D .
- the user pulls the fan unit 8 forward while holding a protruding edge 9 aa provided in the upper fan case 9 a of the fan unit 8 , so that the fan unit 8 can be detached from the inverter apparatus 1 .
- the fan unit 8 is attached by the reverse procedure.
- the fan unit 8 housed in the inverter apparatus 1 has the above-described configuration, and therefore has the following operational advantages:
- the fan case 9 does not directly have any keyhole-shaped aperture, the heavy fan unit 8 does not need to be slid during attachment and detachment. This allows the fan unit 8 to be attached and detached with a small force.
- the holes provided in the fan-unit retainer plate 17 are not limited to the keyhole-shaped apertures 16 , and for example, may be slots or semicircular holes. In this case, it is also possible to slide the fan-unit retainer plate 17 and to attach and detach the fan unit 8 simply by loosening the fixing screws 14 without completely removing the fixing screws 14 .
- a part of the upper fan case 9 a forms the guides 12 a and 12 b shaped like flat plates.
- the guides 12 a and 12 b are in contact with the support members 19 a and 19 b of the housing 2 so as to guide attachment and detachment of the fan unit 8 .
- the fan unit 8 can be attached and detached easily and reliably.
- an air channel 20 is formed by fixing the guides 12 a and 12 b to the support members 19 a and 19 b . This can efficiently cool an adjacent reactor 21 serving as a heating element.
- the inverter apparatus 1 is attached to a control panel or the like (not shown) in a manner such that the fan unit 8 is provided on the upper side and the heat sink 7 is provided on the rear side.
- flange portion 13 is provided in the lower fan case 9 b in the above-described embodiment, it may be provided in the upper fan case 9 a.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Inverter Devices (AREA)
Abstract
Description
Claims (10)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009-122428 | 2009-05-20 | ||
JP2009122428 | 2009-05-20 | ||
JP2009-267688 | 2009-11-25 | ||
JP2009267688A JP4662315B2 (en) | 2009-05-20 | 2009-11-25 | Fan unit and electronic device equipped with the same |
Publications (2)
Publication Number | Publication Date |
---|---|
US20100296246A1 US20100296246A1 (en) | 2010-11-25 |
US8144466B2 true US8144466B2 (en) | 2012-03-27 |
Family
ID=42675283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/782,711 Expired - Fee Related US8144466B2 (en) | 2009-05-20 | 2010-05-19 | Fan unit and electronic apparatus including the same |
Country Status (3)
Country | Link |
---|---|
US (1) | US8144466B2 (en) |
EP (1) | EP2254400B1 (en) |
JP (1) | JP4662315B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110032674A1 (en) * | 2009-08-04 | 2011-02-10 | Kabushiki Kaisha Yaskawa Denki | Power conversion apparatus |
US20110122669A1 (en) * | 2009-11-17 | 2011-05-26 | Semikron Elektronik Gmbh & Co. Kg | Modularly Constructed Power Converter Arrangement |
US20190133001A1 (en) * | 2017-10-31 | 2019-05-02 | Fanuc Corporation | Fan unit |
RU2745399C1 (en) * | 2017-11-27 | 2021-03-24 | Сименс Акциенгезелльшафт | Cooling system with parallel cooling channels |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5720977B2 (en) * | 2010-07-20 | 2015-05-20 | 株式会社安川電機 | Matrix converter |
JP5348623B2 (en) * | 2010-09-10 | 2013-11-20 | 株式会社安川電機 | Electronic equipment |
JP5782994B2 (en) * | 2011-10-31 | 2015-09-24 | 富士電機株式会社 | Inverter stack |
CN103947094B (en) * | 2011-11-21 | 2016-08-24 | 株式会社自动网络技术研究所 | Dc-dc |
JP6070961B2 (en) * | 2014-07-29 | 2017-02-01 | 株式会社安川電機 | Power conversion device and power conversion system |
JP6564339B2 (en) * | 2016-03-29 | 2019-08-21 | 株式会社日立産機システム | Power converter |
CN107134723B (en) * | 2017-06-28 | 2024-06-18 | 河南森源电气股份有限公司 | Switch cabinet and pressure relief and ventilation device thereof |
US11690195B2 (en) | 2020-09-11 | 2023-06-27 | Abb Schweiz Ag | Power semiconductor cooling system |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4774631A (en) * | 1984-11-15 | 1988-09-27 | Fujitsu Limited | Cooling structure of electronic equipment rack |
US5854738A (en) | 1997-05-30 | 1998-12-29 | Intel Corporation | Apparatus for supporting a cooling assembly coupled to an integrated circuit |
US6074296A (en) * | 1998-05-21 | 2000-06-13 | Delta Electronics, Inc. | Case for power supply |
JP2000232288A (en) | 1999-02-12 | 2000-08-22 | Fuji Electric Co Ltd | Power conversion device |
US6392872B1 (en) * | 1999-03-15 | 2002-05-21 | Emc Corporation | Computer system |
US20040136872A1 (en) * | 2002-10-12 | 2004-07-15 | Sionex Corporation | NOx monitor using differential mobility spectrometry |
US20070053160A1 (en) | 2005-09-07 | 2007-03-08 | Inventec Corporation | Fan bearer |
US20070076368A1 (en) * | 2005-09-30 | 2007-04-05 | Dell Products L.P. | Rotatable cooling fans and method for use |
US20080107479A1 (en) | 2006-11-07 | 2008-05-08 | Inventec Corporation | Fan fixing apparatus |
US20080130217A1 (en) * | 2006-12-05 | 2008-06-05 | Wei-Ping Chen | Swappable data access unit rack structure installable in a computer casing |
JP2008135422A (en) | 2006-11-27 | 2008-06-12 | Yaskawa Electric Corp | Motor control unit |
US7481704B2 (en) * | 2005-12-12 | 2009-01-27 | Inventec Corporation | Fan rack fixture having two pairs of positioning and locking portions |
US20090116189A1 (en) * | 2007-11-06 | 2009-05-07 | Compucase Enterprise Co., Ltd. (Taiwan) | Cooling System for a Computer Power Supply Unit |
US7701710B2 (en) * | 2007-08-28 | 2010-04-20 | Hitachi, Ltd. | Cooling structure for rackmount-type control device and rack-type storage control device |
US7771165B2 (en) * | 2006-07-24 | 2010-08-10 | Inventec Corporation | Fan device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2538709B2 (en) * | 1990-08-28 | 1996-10-02 | 株式会社ニューギン | Batting ball launch control device for pachinko machine |
JPH10200280A (en) * | 1997-01-10 | 1998-07-31 | Sony Corp | Electronic equipment |
JP3990519B2 (en) * | 1999-09-30 | 2007-10-17 | 富士通株式会社 | Fan unit |
-
2009
- 2009-11-25 JP JP2009267688A patent/JP4662315B2/en active Active
-
2010
- 2010-05-19 US US12/782,711 patent/US8144466B2/en not_active Expired - Fee Related
- 2010-05-19 EP EP10163286A patent/EP2254400B1/en not_active Not-in-force
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4774631A (en) * | 1984-11-15 | 1988-09-27 | Fujitsu Limited | Cooling structure of electronic equipment rack |
US5854738A (en) | 1997-05-30 | 1998-12-29 | Intel Corporation | Apparatus for supporting a cooling assembly coupled to an integrated circuit |
US6074296A (en) * | 1998-05-21 | 2000-06-13 | Delta Electronics, Inc. | Case for power supply |
JP2000232288A (en) | 1999-02-12 | 2000-08-22 | Fuji Electric Co Ltd | Power conversion device |
US6392872B1 (en) * | 1999-03-15 | 2002-05-21 | Emc Corporation | Computer system |
US20040136872A1 (en) * | 2002-10-12 | 2004-07-15 | Sionex Corporation | NOx monitor using differential mobility spectrometry |
US20070053160A1 (en) | 2005-09-07 | 2007-03-08 | Inventec Corporation | Fan bearer |
US20070076368A1 (en) * | 2005-09-30 | 2007-04-05 | Dell Products L.P. | Rotatable cooling fans and method for use |
US7481704B2 (en) * | 2005-12-12 | 2009-01-27 | Inventec Corporation | Fan rack fixture having two pairs of positioning and locking portions |
US7771165B2 (en) * | 2006-07-24 | 2010-08-10 | Inventec Corporation | Fan device |
US20080107479A1 (en) | 2006-11-07 | 2008-05-08 | Inventec Corporation | Fan fixing apparatus |
JP2008135422A (en) | 2006-11-27 | 2008-06-12 | Yaskawa Electric Corp | Motor control unit |
US20080130217A1 (en) * | 2006-12-05 | 2008-06-05 | Wei-Ping Chen | Swappable data access unit rack structure installable in a computer casing |
US7701710B2 (en) * | 2007-08-28 | 2010-04-20 | Hitachi, Ltd. | Cooling structure for rackmount-type control device and rack-type storage control device |
US20090116189A1 (en) * | 2007-11-06 | 2009-05-07 | Compucase Enterprise Co., Ltd. (Taiwan) | Cooling System for a Computer Power Supply Unit |
Non-Patent Citations (1)
Title |
---|
Extended European Search Report for corresponding EP Application No. 10163286.7-1242, Feb. 23, 2011. |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110032674A1 (en) * | 2009-08-04 | 2011-02-10 | Kabushiki Kaisha Yaskawa Denki | Power conversion apparatus |
US8243447B2 (en) * | 2009-08-04 | 2012-08-14 | Kabushiki Kaisha Yaskawa Denki | Power conversion apparatus |
US20110122669A1 (en) * | 2009-11-17 | 2011-05-26 | Semikron Elektronik Gmbh & Co. Kg | Modularly Constructed Power Converter Arrangement |
US8488319B2 (en) * | 2009-11-17 | 2013-07-16 | Semikron Elektronik Gmbh & Co. Kg | Modularly constructed power converter arrangement |
US20190133001A1 (en) * | 2017-10-31 | 2019-05-02 | Fanuc Corporation | Fan unit |
US11800694B2 (en) * | 2017-10-31 | 2023-10-24 | Fanuc Corporation | Fan unit |
RU2745399C1 (en) * | 2017-11-27 | 2021-03-24 | Сименс Акциенгезелльшафт | Cooling system with parallel cooling channels |
Also Published As
Publication number | Publication date |
---|---|
JP2011003872A (en) | 2011-01-06 |
EP2254400B1 (en) | 2012-05-16 |
EP2254400A2 (en) | 2010-11-24 |
EP2254400A3 (en) | 2011-03-23 |
JP4662315B2 (en) | 2011-03-30 |
US20100296246A1 (en) | 2010-11-25 |
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Owner name: KABUSHIKI KAISHA YASKAWA DENKI, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KISHIMOTO, KAZUTAKA;KOJYO, MAKOTO;SIGNING DATES FROM 20100517 TO 20100518;REEL/FRAME:024405/0791 |
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